Hermoso is a marketing MCP server: 912+ tools over one OAuth’d endpoint that let an agent research the ads already running in a market, generate finished image and video ads, publish them, and build the paid campaigns behind them. Perplexity reaches all of it through one connection. This page covers one slice of that: what Perplexity can actually do on Bluesky, and what Bluesky will not let it do.
Connect Hermoso to Perplexity
- Copy the connector URL.
https://app.hermoso.ai/mcp - Perplexity → Customize → Connectors. In the left sidebar open Customize, then the Connectors tab → Custom connector (top right) → Add MCP connector.
- Fill in the connector. Name it Hermoso and paste the URL as the MCP server URL. Expand Advanced: Authentication OAuth, leaving Client ID and Client Secret empty (Perplexity reads Hermoso’s OAuth endpoints from its discovery document and identifies itself with its own client metadata, so there is nothing to create or paste), Transport Streamable HTTP, Network access Public. Tick I understand custom connectors can introduce risks and press Add.
- Sign in. On the Hermoso card click + (Add connector) and approve on the Hermoso consent page with your Hermoso account.
- Switch it on in a chat. A custom connector is off until you pick it: + (Add files or tools) → Connectors → tick Hermoso.
- Ask Perplexity for something. “Pull my three closest competitors’ longest-running ads and remix the best hook into a 9:16 video,” or “post this render to the channel.” The agent picks the tools; you approve the spend.
Custom connectors are on Perplexity’s paid plans. In an Enterprise organization, members can add their own only if an admin has switched on Allow members to add custom connectors, which is off by default, and an admin can instead add Hermoso once for everyone. We ran these steps end to end on 2026-09-28 from a Perplexity Pro account: the connector signed in and answered with the account’s credit balance and brand list. Hermoso is not affiliated with or endorsed by Perplexity.
Then connect Bluesky itself, once, under Settings → Connectors in Hermoso, with your handle and a Bluesky app password. There is no consent screen: the app password is made in Bluesky’s own settings, and it can be revoked there without touching your real password.
The Bluesky tools Perplexity gets
post_to_bluesky: publishes a post as the connected account: up to 300 characters, with up to four images and alt text, or one MP4 video with optional caption tracks. A link with no media gets a preview card, which Hermoso builds because Bluesky does not fetch one.schedule_post: queues it on the calendar every other channel shares, with the 300-character cap checked when it is queued rather than when it fires.list_bluesky_posts: the account’s own recent posts with their AT-URIs and live counts, marking reposts so someone else’s post is never read as yours.bluesky_post_metrics / bluesky_account: likes, reposts, replies, quotes and bookmarks per post, and followers, following and post count for your account or any public one.list_bluesky_convos / read_bluesky_dm / send_bluesky_dm: read and answer direct messages, including message requests from people the account does not follow.manage_bluesky_convo / react_to_bluesky_dm / mark_bluesky_convo_read: accept a request, mute, lock or leave a conversation, react with one emoji, and clear unread counts.delete_bluesky_post: removes a post, after a first call that deletes nothing and reads back what would go.
Bluesky connects with an app password rather than a sign-in screen: create one in Bluesky’s settings and paste it with the handle under Settings → Connectors. Tick direct-message access when you create it, or the DM tools will tell you the password cannot chat, which is a property of the password and not a broken connection. Two more Bluesky rules Hermoso checks before sending: a video needs a confirmed email on the Bluesky account, and a link card and an image cannot share a post. Publishing costs no credits, because Bluesky charges nothing per call.
Bluesky limits worth knowing before you automate anything
| Text | A Bluesky post is capped at 300 characters and, separately, at 3,000 bytes, so an emoji-heavy post can be under 300 characters and still too long. It is enforced when the post is created or queued, so an overlong post is refused while you are still there to fix it instead of being silently cut on the way out. |
|---|---|
| Visibility | Public only. A Bluesky post is a public record on the AT Protocol, and there is no unlisted, private or draft form of one. The review happens before the call, never after it. |
| Carousel | 2 to 4 images, images only. Four is Bluesky’s own number, from the AT Protocol lexicon for an image embed, and a fifth is refused rather than dropped. A video is a different embed that carries exactly one clip, and a post has a single embed, so a Bluesky post is images, one video or a link card: one of the three. |
| Which account | None, unless the brand has connected more than one Bluesky account. Then account names which, and several with none named is refused by name rather than guessed. |
Try it in Perplexity
Ask for it in ordinary language. These are plain sentences, not a DSL:
“Write a Bluesky post under 300 characters on the week’s biggest story in our space, link the best source with a preview card, and post it.”
That walks get_brand → generate_image → post_to_bluesky → bluesky_post_metrics. How Perplexity confirms a tool call is Perplexity’s setting, not ours. Hermoso’s own gates hold either way: campaigns are born paused, spend switches and deletes need an explicit confirmation, and every render is priced before it runs.
Perplexity on Bluesky: the part that bites
A bare URL on Bluesky is plain blue text, because nothing on Bluesky’s side fetches a preview. Hermoso builds the card from the page’s title, description and image whenever a post has a link and no media, which suits a source-first post. Attach an image as well and the card is skipped, since a Bluesky post carries one embed.
Choose Streamable HTTP, not SSE, when you add the connector. Hermoso has no SSE endpoint, so an SSE connector fails the check Perplexity runs when you save it. In an Enterprise org, a connector an admin adds does not show up for members until it is shared from the Permissions screen.
Research Bluesky before you post
There is no Bluesky ad library and no Bluesky search in Hermoso, so competitor research there comes down to one honest thing: bluesky_account reads any public account’s followers, following and post count, which is enough to size a competitor and chart it week by week. Everything else in the research surface (the Meta, Google and LinkedIn ad libraries, organic TikTok, Instagram, YouTube, Reddit and Threads) is unaffected.
The paid half
There is no Bluesky ads product in Hermoso, and we do not imply one. Bluesky here is organic: publish, schedule, read, reply and measure. The paid tools cover Meta, Google Ads, Microsoft Advertising, Reddit Ads, LinkedIn, Pinterest, X Ads, TikTok Ads, Snapchat Ads, ChatGPT Ads, Apple Search Ads and AppLovin Ads.
What Perplexity cannot do on its own
An agent with a budget is only useful if the blast radius is bounded, so the fence is in the server rather than in a prompt. Every ad campaign, ad set, ad group and ad is created paused, and the status switches that arm real money refuse to run without an explicit confirmation flag. Every render is quoted first (hermoso_capabilities publishes each model’s exact credit cost before anything spends). Credits are reserved before the first provider call and settled at the exact cost afterwards, so a failed dispatch refunds rather than leaving you billed for nothing. Deletes are confirm-gated too, and every campaign tree is read back from the ad platform before your agent tells you what it built.
One step is deliberately yours: creating the Bluesky app password and connecting it once. Everything after that is a tool call.
The rest of the matrix
From Perplexity, post to: Facebook · Instagram · Threads · TikTok · YouTube · X · LinkedIn · Pinterest · Telegram. Or see everything Perplexity can publish to.
Post to Bluesky from: Claude · ChatGPT · Claude Code · Cursor · Codex · Cline · OpenClaw · Grok Bot · Hermes · Gemini CLI · Le Chat · Claude Cowork · Perplexity Computer · Paperclip
Frequently asked questions
Can Perplexity post to Bluesky?
Yes, through Hermoso's MCP server. In Perplexity, add https://app.hermoso.ai/mcp as a custom connector and approve it with your Hermoso account. There is no key to paste. Perplexity then has 912+ tools, including the ones that publish to Bluesky, plus the ones that research the ads already running in your market and render the creative in the first place.
How do I connect Bluesky to Perplexity?
Two steps, once each. In Perplexity, add https://app.hermoso.ai/mcp as a custom connector and approve it with your Hermoso account. There is no key to paste. Then create an app password in Bluesky's settings (tick direct-message access if you want the DM tools) and paste it with your handle under Settings → Connectors in Hermoso. After that Perplexity publishes to Bluesky as an ordinary tool call.
Can Perplexity post privately or as a draft to Bluesky?
No. A Bluesky post is a public record on the AT Protocol, with no unlisted, private or draft form, so the review belongs before the call. Hermoso refuses a visibility Bluesky cannot honour at the moment you ask for it, rather than quietly publishing something weaker.
What does it cost to post to Bluesky from Perplexity?
Publishing to Bluesky costs no credits; Bluesky charges nothing per call. Credits are spent on generating the creative. Plans are $19, $49 and $149 a month for 1,000, 3,000 and 10,000 credits, and every feature is on every plan including Free. The only exception is enterprise SSO.
What is the Bluesky caption limit when posting from Perplexity?
A Bluesky post is capped at 300 characters and at 3,000 bytes, so an emoji-heavy post can be under 300 characters and still be refused; Hermoso says which limit applied and by how much. Hermoso enforces it when the post is created or queued, so Perplexity is told immediately rather than failing later when nobody is watching.
Can Perplexity schedule a Bluesky post for later?
Yes. schedule_post queues it on one calendar shared with every other channel, with a per-channel caption if the copy should differ, and list_scheduled and cancel_scheduled read and pull it back. Bluesky is one of the eleven channels that queue.
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